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Published on: April 4, 2017
Multi-resolution estimation of the interference spectrum per pair of modes in the frequency domain
Wei Gao1, Xiaolei Li1, Haozhong Wang1
1Department of Marine Technology, Ocean University of China, Qingdao 266100, Chinagaowei@ouc.edu.cn, lxl@ouc.edu.cn, coolice@ouc.edu.cn.
Abstract:
A multi-resolution estimation method for interference spectrum separation from a one-dimensional broadband acoustic intensity is presented in this letter. The key of the proposed method is the recursion reconstruction and singular value decomposition of a 2×L Hankel matrix, which is constructed by a broadband intensity data sequence of length L + 1. Numerical simulation results show that this method can be used to achieve the zero-phase-shift estimation of each interference spectrum without any prior environmental information.
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